<?php // $Id: format.php,v 1.74.2.6 2008/12/10 06:05:27 dongsheng Exp $
	  // Display the whole course as "weeks" made of of modules
	  // Included from "view.php"

	require_once($CFG->libdir.'/ajax/ajaxlib.php');

	$week = optional_param('week', -1, PARAM_INT);

	// Bounds for block widths
	// more flexible for theme designers taken from theme config.php
	$lmin = (empty($THEME->block_l_min_width)) ? 100 : $THEME->block_l_min_width;
	$lmax = (empty($THEME->block_l_max_width)) ? 210 : $THEME->block_l_max_width;
	$rmin = (empty($THEME->block_r_min_width)) ? 100 : $THEME->block_r_min_width;
	$rmax = (empty($THEME->block_r_max_width)) ? 210 : $THEME->block_r_max_width;

	define('BLOCK_L_MIN_WIDTH', $lmin);
	define('BLOCK_L_MAX_WIDTH', $lmax);
	define('BLOCK_R_MIN_WIDTH', $rmin);
	define('BLOCK_R_MAX_WIDTH', $rmax);
  
	$preferred_width_left  = bounded_number(BLOCK_L_MIN_WIDTH, blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]),  
											BLOCK_L_MAX_WIDTH);
	$preferred_width_right = bounded_number(BLOCK_R_MIN_WIDTH, blocks_preferred_width($pageblocks[BLOCK_POS_RIGHT]), 
											BLOCK_R_MAX_WIDTH);

	if ($week != -1) {
		$displaysection = course_set_display($course->id, $week);
	} else {
		if (isset($USER->display[$course->id])) {
			$displaysection = $USER->display[$course->id];
		} else {
			$displaysection = course_set_display($course->id, 0);
		}
	}

	$streditsummary  = get_string('editsummary');
	$stradd		  = get_string('add');
	$stractivities   = get_string('activities');
	$strshowallweeks = get_string('showallweeks');
	$strweek		 = get_string('week');
	$strgroups	   = get_string('groups');
	$strgroupmy	  = get_string('groupmy');
	$editing		 = $PAGE->user_is_editing();

	if ($editing) {
		$strstudents = moodle_strtolower($course->students);
		$strweekhide = get_string('weekhide', '', $strstudents);
		$strweekshow = get_string('weekshow', '', $strstudents);
		$strmoveup   = get_string('moveup');
		$strmovedown = get_string('movedown');
	}

	$context = get_context_instance(CONTEXT_COURSE, $course->id);
/// Layout the whole page as three big columns.
	echo '<table id="layout-table" cellspacing="0" summary="'.get_string('layouttable').'"><tr>';
	$lt = (empty($THEME->layouttable)) ? array('left', 'middle', 'right') : $THEME->layouttable;
	foreach ($lt as $column) {
		switch ($column) {
			case 'left':
 
/// The left column ...

	if (blocks_have_content($pageblocks, BLOCK_POS_LEFT) || $editing) {
		echo '<td style="width:'.$preferred_width_left.'px" id="left-column">';

		print_container_start();
		blocks_print_group($PAGE, $pageblocks, BLOCK_POS_LEFT);
		print_container_end();

		echo '</td>';
	}
			break;
			case 'middle':
/// Start main column
	echo '<td id="middle-column">';

	print_container_start();
		
	echo skip_main_destination();

	print_heading_block(get_string('weeklyoutline'), 'outline');

	echo '<table class="weeks" width="100%" summary="'.get_string('layouttable').'">';

/// If currently moving a file then show the current clipboard
	if (ismoving($course->id)) {
		$stractivityclipboard = strip_tags(get_string('activityclipboard', '', addslashes($USER->activitycopyname)));
		$strcancel= get_string('cancel');
		echo '<tr class="clipboard">';
		echo '<td colspan="3">';
		echo $stractivityclipboard.'&nbsp;&nbsp;(<a href="mod.php?cancelcopy=true&amp;sesskey='.$USER->sesskey.'">'.$strcancel.'</a>)';
		echo '</td>';
		echo '</tr>';
	}

/// Print Section 0 with general activities

	$section = 0;
	$thissection = $sections[$section];

	if ($thissection->summary or $thissection->sequence or isediting($course->id)) {
		echo '<tr id="section-0" class="section main">';
		echo '<td class="left side">&nbsp;</td>';
		echo '<td class="content">';
		
		echo '<div class="summary">';
		$summaryformatoptions->noclean = true;
		echo format_text($thissection->summary, FORMAT_HTML, $summaryformatoptions);

		if (isediting($course->id) && has_capability('moodle/course:update', get_context_instance(CONTEXT_COURSE, $course->id))) {
			echo '<a title="'.$streditsummary.'" '.
				 ' href="editsection.php?id='.$thissection->id.'"><img src="'.$CFG->pixpath.'/t/edit.gif" '.
				 'class="iconsmall edit" alt="'.$streditsummary.'" /></a><br /><br />';
		}
		echo '</div>';
		
		print_section($course, $thissection, $mods, $modnamesused);

		if (isediting($course->id)) {
			print_section_add_menus($course, $section, $modnames);
		}

		echo '</td>';
		echo '<td class="right side">&nbsp;</td>';
		echo '</tr>';
		echo '<tr class="section separator"><td colspan="3" class="spacer"></td></tr>';

	}


/// Now all the normal modules by week
/// Everything below uses "section" terminology - each "section" is a week.

	$timenow = time();
	$weekdate = $course->startdate;	// this should be 0:00 Monday of that week
	$weekdate += 7200;				 // Add two hours to avoid possible DST problems
	$section = 1;
	$sectionmenu = array();
	$weekofseconds = 604800;
	$course->enddate = $course->startdate + ($weekofseconds * $course->numsections);

	$strftimedateshort = ' '.get_string('strftimedateshort');

	while ($weekdate < $course->enddate) {

		$nextweekdate = $weekdate + ($weekofseconds);
		$weekday = userdate($weekdate, $strftimedateshort);
		$endweekday = userdate($weekdate+518400, $strftimedateshort);

		if (!empty($sections[$section])) {
			$thissection = $sections[$section];

		} else {
			unset($thissection);
			$thissection->course = $course->id;   // Create a new week structure
			$thissection->section = $section;
			$thissection->summary = '';
			$thissection->visible = 1;
			if (!$thissection->id = insert_record('course_sections', $thissection)) {
				notify('Error inserting new week!');
			}
		}

		$showsection = (has_capability('moodle/course:viewhiddensections', $context) or $thissection->visible or !$course->hiddensections);

		if (!empty($displaysection) and $displaysection != $section) {  // Check this week is visible
			if ($showsection) {
				$sectionmenu['week='.$section] = s("$strweek $section |	 $weekday - $endweekday");
			}
			$section++;
			$weekdate = $nextweekdate;
			continue;
		}

		if ($showsection) {

			$currentweek = (($weekdate <= $timenow) && ($timenow < $nextweekdate));

			$currenttext = '';
			if (!$thissection->visible) {
				$sectionstyle = ' hidden';
			} else if ($currentweek) {
				$sectionstyle = ' current';
				$currenttext = get_accesshide(get_string('currentweek','access'));
			} else {
				$sectionstyle = '';
			}

			echo '<tr id="section-'.$section.'" class="section main'.$sectionstyle.'">';
			echo '<td class="left side">&nbsp;'.$currenttext.'</td>';

			$weekperiod = $weekday.' - '.$endweekday;

			echo '<td class="content">';
			if (!has_capability('moodle/course:viewhiddensections', $context) and !$thissection->visible) {   // Hidden for students
				print_heading($weekperiod.' ('.get_string('notavailable').')', null, 3, 'weekdates');

			} else {
				print_heading($weekperiod, null, 3, 'weekdates');

				echo '<div class="summary">';
				$summaryformatoptions->noclean = true;
				echo format_text($thissection->summary, FORMAT_HTML, $summaryformatoptions);

				if (isediting($course->id) && has_capability('moodle/course:update', get_context_instance(CONTEXT_COURSE, $course->id))) {
					echo ' <a title="'.$streditsummary.'" href="editsection.php?id='.$thissection->id.'">'.
						 '<img src="'.$CFG->pixpath.'/t/edit.gif" class="iconsmall edit" alt="'.$streditsummary.'" /></a><br /><br />';
				}
				echo '</div>';

				print_section($course, $thissection, $mods, $modnamesused);

				if (isediting($course->id)) {
					print_section_add_menus($course, $section, $modnames);
				}
			}
			echo '</td>';

			echo '<td class="right side">';

			if ($displaysection == $section) {
				echo '<a href="view.php?id='.$course->id.'&amp;week=0#section-'.$section.'" title="'.$strshowallweeks.'">'.
					 '<img src="'.$CFG->pixpath.'/i/all.gif" class="icon wkall" alt="'.$strshowallweeks.'" /></a><br />';
			} else {
				$strshowonlyweek = get_string("showonlyweek", "", $section);
				echo '<a href="view.php?id='.$course->id.'&amp;week='.$section.'" title="'.$strshowonlyweek.'">'.
					 '<img src="'.$CFG->pixpath.'/i/one.gif" class="icon wkone" alt="'.$strshowonlyweek.'" /></a><br />';
			}

			if (isediting($course->id) && has_capability('moodle/course:update', get_context_instance(CONTEXT_COURSE, $course->id))) {
				if ($thissection->visible) {		// Show the hide/show eye
					echo '<a href="view.php?id='.$course->id.'&amp;hide='.$section.'&amp;sesskey='.$USER->sesskey.'#section-'.$section.'" title="'.$strweekhide.'">'.
						 '<img src="'.$CFG->pixpath.'/i/hide.gif" class="icon hide" alt="'.$strweekhide.'" /></a><br />';
				} else {
					echo '<a href="view.php?id='.$course->id.'&amp;show='.$section.'&amp;sesskey='.$USER->sesskey.'#section-'.$section.'" title="'.$strweekshow.'">'.
						 '<img src="'.$CFG->pixpath.'/i/show.gif" class="icon hide" alt="'.$strweekshow.'" /></a><br />';
				}
				if ($section > 1) {					   // Add a arrow to move section up
					echo '<a href="view.php?id='.$course->id.'&amp;random='.rand(1,10000).'&amp;section='.$section.'&amp;move=-1&amp;sesskey='.$USER->sesskey.'#section-'.($section-1).'" title="'.$strmoveup.'">'.
						 '<img src="'.$CFG->pixpath.'/t/up.gif" class="iconsmall up" alt="'.$strmoveup.'" /></a><br />';
				}

				if ($section < $course->numsections) {	// Add a arrow to move section down
					echo '<a href="view.php?id='.$course->id.'&amp;random='.rand(1,10000).'&amp;section='.$section.'&amp;move=1&amp;sesskey='.$USER->sesskey.'#section-'.($section+1).'" title="'.$strmovedown.'">'.
						 '<img src="'.$CFG->pixpath.'/t/down.gif" class="iconsmall down" alt="'.$strmovedown.'" /></a><br />';
				}
			}

			echo '</td></tr>';
			echo '<tr class="section separator"><td colspan="3" class="spacer"></td></tr>';
		}

		$section++;
		$weekdate = $nextweekdate;
	}
	echo '</table>';

	if (!empty($sectionmenu)) {
		echo '<div class="jumpmenu">';
		echo popup_form($CFG->wwwroot.'/course/view.php?id='.$course->id.'&amp;', $sectionmenu,
				   'sectionmenu', '', get_string('jumpto'), '', '', true);
		echo '</div>';
	}

	print_container_end();

	echo '</td>';

			break;
			case 'right':
	// The right column
	if (blocks_have_content($pageblocks, BLOCK_POS_RIGHT) || $editing) {
		echo '<td style="width: '.$preferred_width_right.'px;" id="right-column">';

		print_container_start();
		blocks_print_group($PAGE, $pageblocks, BLOCK_POS_RIGHT);
		print_container_end();

		echo '</td>';
	}

			break;
		}
	}
	echo '</tr></table>';

?>
